// Ninf-G-XX, ver. 0.1
// Copyright 2011 National Institute of Advanced Industrial Science and Technology
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __OUTPUT_STREAM_H__
#define __OUTPUT_STREAM_H__

namespace ninf {
	namespace lib {
		class OutputStream {
		public:
			virtual ~OutputStream(){}

			/* write out a single byte */
			virtual void write(int c) = 0;

			/* write out array of bytes */
			virtual void write(const char * val, int offset, int len) = 0;

			/* flush the underlying stream */
			virtual void flush() = 0;

			/* close the underlying stream */
			virtual void close() = 0;
		};
	}
}
#endif
